Possible presidential contenders in 2016

Possible presidential contenders in 2016

Justin Sullivan / Getty Images

Sen. Marco Rubio (R-Fla.) saw his national profile soar during the 2012 campaign as a surrogate for Mitt Romney and, in 2013, working to pass bipartisan immigration reform. But Rubio's openness to compromise on the issue has subjected him to criticism from the right.

Sen. Marco Rubio (R-Fla.) saw his national profile soar during the 2012 campaign as a surrogate for Mitt Romney and, in 2013, working to pass bipartisan immigration reform. But Rubio's openness to compromise on the issue has subjected him to criticism from the right. (Justin Sullivan / Getty Images)

Sen. Marco Rubio (R-Fla.) saw his national profile soar during the 2012 campaign as a surrogate for Mitt Romney and, in 2013, working to pass bipartisan immigration reform. But Rubio's openness to compromise on the issue has subjected him to criticism from the right.